"""角色列表 boundUserNames / boundPostNames enrichment。"""
import inspect

from app.crud import role as role_crud


class _DummySession:
    def query(self, *args, **kwargs):  # pragma: no cover
        raise AssertionError("空入参不应访问数据库")


def test_bound_user_names_by_role_ids_empty():
    db = _DummySession()
    assert role_crud._bound_user_names_by_role_ids(db, [], "zkxw") == {}
    assert role_crud._bound_user_names_by_role_ids(db, ["r1"], "") == {}


def test_bound_post_names_by_role_ids_empty():
    db = _DummySession()
    assert role_crud._bound_post_names_by_role_ids(db, [], "zkxw") == {}
    assert role_crud._bound_post_names_by_role_ids(db, ["r1"], "") == {}


def test_user_display_name_prefers_nick():
    assert role_crud._user_display_name("张三", "zhangsan") == "张三"
    assert role_crud._user_display_name("", "zhangsan") == "zhangsan"
    assert role_crud._user_display_name("  ", "u1") == "u1"
    assert role_crud._user_display_name(None, None) == ""


def test_list_roles_enriches_bound_names():
    source = inspect.getsource(role_crud.list_roles)
    assert "_bound_user_names_by_role_ids" in source
    assert "_bound_post_names_by_role_ids" in source
    assert "boundUserNames" in inspect.getsource(role_crud._row_to_dict) or "bound_user_names" in source